The following conditions will result in compulsory licensing:

1. The invention, whose use is contrary to the Islamic Sharia, contrary to the public order or morality, violates the security of the Republic or damage to the environment or human, animal or plantation life and health.
2. Discoveries, theories, mathematical methods and the regulations, rules, principles and techniques of doing business, exercising pure mental activities or playing games.
3. Methods of diagnosis, surgery or treatment of human beings or animals.
4. Plants or animals or processes used to produce plants or animals with the exception of micro biological organisms, non-biological methods and micro biological processes.
5. Organs, tissues, living cells, natural biological substances, DNA, blood, hormones and genes.

If the invention is a result of joint efforts of several individuals, the ownership of the patent shall belong to them equally, unless otherwise multilaterally agreed upon. A person, whose activities were limited to help, carrying the invention into effect, shall not be considered a joint inventor.

If more than one person has individually achieved the same invention, the patent of invention shall be granted to whoever first applied for filing the invention to the Competent Department.

The patentee may, if introducing any modification or amendment to the original invention, be granted patent of addition.

Yemen is a member of Paris Convention but not of Patent Cooperation Treaty.

YES, within 12 months from the first filing date.

Pending and granted patents are searched by title, patentee name and/or priority date.

90 days.

Due annually on the anniversary of the filing date, and for the time being, no surcharge for late payment of maintenance fees.

The patent grace period will be implemented as soon as the new implementing regulation comes into force in Yemen.

20 non-renewable years, starting from the date of application.

After the grant or acceptance of the application.

YES, within 90 days as of the date of publication.

NO.

YES.

In English with Arabic translations.